750311625

Switching Converter, SMPS Transformers Overview

The Würth Elektronik 750311625 is a surface-mount flyback transformer designed for DC/DC converter applications within the WE-FB series. It features a primary voltage range of 10 to 40V and an auxiliary voltage of 8V at 20mA. The component provides 1500Vrms isolation and operates at a frequency of 100kHz with an inductance of 9µH measured at 10kHz. It supports a maximum operating temperature of 125°C and has a physical height of 0.505 inches (12.83mm). The package dimensions are 0.530 inches by 0.699 inches (13.46mm x 17.75mm).

Switching Converter, SMPS Transformers Feature Summary

• Designed specifically for flyback converter topologies in SMPS circuits.
• Provides high-voltage isolation capability for safety-critical designs.
• Optimized for operation with Linear Technology controller ICs.

Switching Converter, SMPS Transformers Applications

• Flyback converter implementations
• DC/DC power supply modules
• SMPS transformer stages

Switching Converter, SMPS Transformers Procurement Notes

Verify the specific ordering suffix to ensure correct packaging configuration, such as tape and reel or cut tape, matches production requirements. Confirm that the component remains active in the manufacturer's portfolio before finalizing design-in decisions. Cross-reference the latest datasheet revision to account for any recent manufacturing changes or marking updates documented in product change notifications.

Switching Converter, SMPS Transformers Selection Notes

Select this component when designing flyback converters requiring compatibility with LT3573, LT3574, LT3575, or LT3748 controllers. Ensure the input voltage range aligns with the 10-40V primary specification. Verify that the PCB footprint accommodates the specified SMD package dimensions and that thermal management supports the 125°C maximum operating temperature rating.

Switching Converter, SMPS Transformers Part Context

This part belongs to the WE-FB series from Würth Elektronik, which focuses on flyback transformers tailored for specific controller families. The series emphasizes integration with established switching regulator ICs to simplify power supply design. The 750311625 variant is specifically tuned for the Linear Technology LT35xx series, ensuring optimal magnetic performance for those control architectures.

Switching Converter, SMPS Transformers Replacement Considerations

Direct substitutes include other parts within the WE-FB LT35xx family, such as 750311889, provided the electrical parameters like inductance and power rating meet the circuit requirements. Verify pinout compatibility and isolation ratings before substitution.